Week11_頭腳偵測_02160421黃志楷

            第十一週課程:頭腳偵測

Week11:Detection head and feet

第一節課(準備)

1. 先下載並安裝 sdk 以及 KinectDeveloperToolkit

2.下載安裝meshlab

3.試試看，範例程式

第二節課(找頭)

1.找尋頭的座標

import SimpleOpenNI.*; 匯入函式庫
SimpleOpenNI show;
void setup()
{
   size(640,480);
   show=new SimpleOpenNI(this); 要宣告show 
   show.enableRGB();
   show.enableDepth(); 
   show.enableUser();
}

void draw()

{
   show.update();  記得要更新
  image(show.userImage(),0,0,640,480);
  for(int userId : show.getUsers()) 持續找臉跟畫球
  {
    PVector pos = new PVector(0,0,0);
    float conf=show.getJointPositionSkeleton(userId,SimpleOpenNI.SKEL_HEAD,pos);
    ellipse(pos.x,pos.y,50,50);
  }
}
void onNewUser(SimpleOpenNI curContext, int userId) 記得有人進來要給他一個id
{
 curContext.startTrackingSkeleton(userId);
}

第三節課(優化程式)

1.優化找頭程式，讓其更精準

import SimpleOpenNI.*;

SimpleOpenNI show;

void setup()

{

   size(640,480);

   show=new SimpleOpenNI(this);

   show.enableRGB();

   show.enableDepth(); 

   show.enableUser();

}

float xpos(PVector pos) 優化

{

  return width/2+pos.x*500/pos.z;

}

float ypos(PVector pos) 優化

{

  return height/2-pos.y*500/pos.z;

}

void draw()

{

   show.update();

  image(show.userImage(),0,0,640,480);

  for(int userId : show.getUsers())

  {

    PVector pos = new PVector(0,0,0);

    float conf=show.getJointPositionSkeleton(userId,SimpleOpenNI.SKEL_HEAD,pos);

   ellipse(xpos(pos),ypos(pos),50,50); 優化

    }

}

void onNewUser(SimpleOpenNI curContext, int userId)

{

  curContext.startTrackingSkeleton(userId);

}

2.增加左右腳

 for(int userId : show.getUsers())

  {

    PVector pos = new PVector(0,0,0),pos1 = new PVector(0,0,0),pos2 = new PVector(0,0,0);

    float conf=show.getJointPositionSkeleton(userId,SimpleOpenNI.SKEL_HEAD,pos);

     ellipse(xpos(pos),ypos(pos),50,50);

     conf = show.getJointPositionSkeleton(userId,SimpleOpenNI.SKEL_LEFT_FOOT,pos1);

     ellipse(xpos(pos1),ypos(pos1),50,50);

     conf = show.getJointPositionSkeleton(userId,SimpleOpenNI.SKEL_RIGHT_FOOT,pos2);

     ellipse(xpos(pos2),ypos(pos2),50,50);

  }